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Letters Patent No. 80,673, dated August 4, 1868.

IMPROVEMENT Illl` DEVICE FOR SOLDERIN G TIN -GANS.

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To ALI. WIIoM- IT MAY eoNcERNI- Be it known that I, WILLIAM SERVISS, of Sidney, in the county of Shelby, and State'of Ohio, have invented certain new and useful Improvements in Devices for Soldering Fruit-Cans; andI do hereby d eclare that the following is a full, clear, and exact description thereof', reference being had to the -accompanying drawings, and to the letters of reference marked thereon, which form a partei' this specification, in which Figure 1 represents a vertical section, in perspective, of my improved device for soldering tin cans, and

Figure 2 a plan or top View of the same. l

The object of my invention is to provide a convenient device whereby the operation of soldering tin cans, can-tops, or other cylindrical vessels,` may be facilitated, and which shall be adjustable, to suit different diameters; and to this end my improvement consists in a tubular holder, having an annular lip near its top, against which the upper edge'of the cylinder 'to be soldered rests, and capable of being sprung apart, torincreaseits diamcterbeing held in desired position by screws and nuts.

Y In manufacturing tin cans, for fruit or other purposes, tinners frequently experience the need of a device which will be adaptable to slight. variations in diameter', without necessitating the use of a separato holder for each diameter of can made, and my improvementis designed to accomplish this end in a cheap and simple manner.

In the accompanying drawings, which show a convenient arrangement of parts for carrying out the objectsV of my invention, A represents a tubular holder, which is composed of sheet metal, bent into cylindrical form, and having its edges overlapping at their meeting-point, without being fastened togetherthe inner edge being countersunk or beugtlnwards for the distance that the outer overlaps'it, so that the outside of theholder shall present a smooth surface for the reception of the cylinder to be soldered. An annular lip, B, is secured upon the holder, near its top, against which the upper end of the'can rests during the operation.

Slots, C,.are formed in the inner or countersunli edge of the sheet which eomposes the holder, through which screws D, onthe overlapping edge, pass, and the two edges are clamped together by the nuts D. The elasticity ofthe sheet metal will spring the edges apart when the nuts are Blackened, thereby increasing the diameter of the holder, the nuts clamping the edges together when screwed up.

The sheet metal from which thecan is to be formed is bent to cylindrical form, and placed around the holder, having its edges overlapping as i'ar as necessary, and resting under and against the lip B. The can` is then soldered in the usual manner, 'and withdrawn from the holder, which is held by means of its handle, E, which can lie-connected to a fixed clamp.

The device herein described is an improvement on that patented by me, March 24, 1868, differing therefrom in its adaptability to the soldering of cans of different diameters, the improvement consisting in providing the tubular holder withslots, screws, and nuts, substantially as above set forth.

What'I-clai'm as my invention, and desire to secure by LettersPatent, is

The tubular .holder A, when provided with the slots C, screws D, and nuts D', arranged and operating substantially as and for the purpose described. V

Y AIn testimony that I`claim the foregoing as my own, Laiix my signature' in presence of two witnesses.

WILLIAM SERVISS.

Witnesses:

H. C. Rommrs, H. W. NEAL. 

